Stock roll supply arbor



MarCh 1955 J. R. BAUMGARTNER STOCK ROLL SUPPLY ARBOR Filed Qune 12, 19531N VEN TOR. M7 a/C m QWEMQMJ;

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United States Patent O STOCK ROLL SUPPLY ARBOR John R. Baumgartner,Milwaukee, Wis. Application June 12, 1953, Serial No. 361,378 6 Claims.(Cl. 242-73) The invention relates to supply or stock roll arbors forcarrying rolls of paper or other materials which may be unwoundtherefrom on the turning of the arbor.

The main object of the invention is to provide an,

arbor of the type above described which permits ready installation ofthe roll on the arbor and the clamping of the core or the roll to thearbor, the arbor being adjustable to accommodate supply rolls ofdilferent widths.

The invention further consists in the several features hereinafter setforth and more particularly defined by claims at the conclusion hereof.

In the drawings:

Fig. 1 is a side elevation view of an arbor embodying the invention,parts being broken away and parts being shown in section;

Fig. 2 is an elevation view of the arbor and the supply roll mounted ona supporting cradle or frame.

Referring to the drawings, the arbor includes a roll carrying shaft 3and roll mounting core plugs or collars 4 and 5 mounted on said shaft.

The core plug 4 is adapted to be secured in difierent positions oflengthwise adjustment relative to one end of the shaft 3 to accommodatesupply rolls of material of different widths by a pin 6 which passesthrough alined holes 7 in the hub of said collar and through any one ofthe spaced sets of diametrically disposed holes 8 in the shaft 3.

The core plug 5 is keyed to a sleeve 10 surrounding the other end ofshaft 3 and slidably movable thereon, said sleeve at its rear endcarrying a housing formed by an end plate 11, cylinder 12, and end plate13 secured to the outer end of cylinder 12 by a split retainer ring 14.The sleeve 10 has a cradle bearing member 15 journalled thereon byspaced ball bearings 16.

A plate or disk 17 is welded or otherwise suitably fixed to the housingend of shaft 3 within the housing above referred to.

A spring 18 is mounted in the hollow of the shaft 3 between the endplate 13 and a fixed stop 19 anchored to said shaft by a pin 20, saidspring, when tensioned, acting to move the shaft 3 and the plug 4 towardthe right and away from the plug 5.

An inflatable pneumatic tube 21 having the usual selfclosing tire valve22 is secured to the end plate 11 by the valve fitting and by a fittingincluding an exhaust valve or cock 23 and is adapted to bear at itsother side against the disk 17.

The plugs 4 and 5 have tapered surface 24 so that either the innerdiameter of the stock roll 25 or the core for said roll will ride up onsaid tapered surfaces and come to seat against the shoulders 26 of saidplugs when said plugs are drawn toward each other.

With the above arrangement, the plug 4 having been removed from theshaft 3, this shaft is run through the hollow center of the supply roll25 until the plug 5 abuts one side of the roll and the plug 4 is thenreplaced on shaft 3 and run up on this shaft to a position adjacent theother side of the roll and locked by the pin 6 passed through one of thesets of holes 8, the spring 18 then being in its expanded position. Thenair under pressure is introduced into the tube 21 from a suitable sourceof compressed air past the valve 22 to inflate the tube as shown in Fig.l and thus cause it to exert pressure on the disk 17 to move the arborshaft 3 with plug 4 toward the left and thus bring plug 4 closer to plug5 and bring these plugs into clamping engagement with the inner diameterof the roll 24 as shown in Fig. 1

2,705,112 Patented Mar. 29, 1955 or with a core on said roll and thesame time putting tension in the spring 18. With the roll thus mountedon the arbor it is placed in half-bearings 27 of a cradle 28 so that theshaft 3 can rotate on said bearings as the stock is unwound from theroll 25, it being noted that the plugs 4 and 5 are held against the rollby air pressure. On a reduction of air pressure in the tube 21 by theopening of the exhaust cock 23, spring 18 will act to quickly separatethe plugs 4 and 5 from clamping engagement with the roll 24 or a partthereof remaining on the arbor.

The bearing member 15 is preferably a roller provided with a V-groove 29and the half bearing 27 is formed with a complementary V-shapedperipheral surface, as shown in Fig. 2, engaged by said groove 29 sothat when these parts are in mating relation, any end movement of thearbor relative to the cradle is prevented.

I desire it to be understood that this invention is not to be limited toany particular form or arrangement of parts except in so far as suchlimitations are included in the appended claims. 1

What I claim as my invention is:

1. In a stock roll arbor, the combination of an arbor shaft, core plugs,means for adjustably mounting one of said plugs lengthwise of saidshaft, the other of said plugs being slidably mounted on said shaft,fluid pressure operated means interposed between said shaft and saidother plug for producing relative movement between said shaft and saidother plug to move said plugs into clamping relation with a stock rolldisposed therebetween, and resilient means acting in opposition to saidfluid pressure and facilitating separation of said plugs from engagementwith said stock roll.

2. In a stock roll arbor, the combination of an arbor shaft, core plugs,means for anchoring one of said plugs to the shaft, the other of saidplugs being slidably mounted on said shaft, an abutment member securedto said shaft adjacent said other plug, a housing operatively connectedto said other plug, a pneumatic tube mounted in said housing andengageable with said abutment member for moving said anchored plugtoward said other plug to clamp a stock roll between said plugs, andmeans for supplying air pressure to said pneumatic tube.

3. The stock roll arbor as defined in claim 2 in combination with aspring interposed between said shaft and housing for said tube andacting in opposition to the fluid pressure in said tube to facilitateseparation of said plugs from engagement with said stock roll when saidtube is deflated.

4. In a stock roll assembly, the combination of an arbor, core plugs,means for adjustably mounting one of said plugs lengthwise of saidshaft, the other of said plugs being slidably mounted on said shaft andhaving a hub, fluid pressure operated means interposed between saidshaft and said other plug for producing relative movement between saidshaft and said other plug to move said plugs into clamping relation witha stock roll disposed therebetween, a roller having a V-groove mountedon the hub of said other plug, a cradle for said arbor having a bearingfor one end of said arbor and a V-bearing complementary to the V-grooveof said roller to prevent endwise movement of said arbor relative tosaid cradle.

5. In a stock roll assembly, the combination of an arbor, core plugs,means for adjustably mounting one of said plugs lengthwise of saidshaft, the other of said plugs being slidably mounted on said shaft andhaving a hub, fluid pressure operated means interposed between saidshaft and said other plug for producing relative movement between saidshaft and said other plug to move said plugs into clamping relation witha stock roll disposed therebetween, supporting bearings for said shaftincluding a bearing cooperating with the hub of said other plug toprevent endwise movement of said arbor relative to said cradle andmaintain a constant distance between said other plug and its associatedbearing.

6. In a stock roll assembly, the combination of an arbor, core plugs,means for adjustably mounting one of said plugs lengthwise of saidshaft, the other of said plugs being slid-ably mounted on said shaft,fluid pressure operated means interposed between said shaft and saidother plug for producing relative movement between said shaft and saidother plug to move said plugs into clamping relation with the stock rolldisposed therea between, supporting bearings at the extended ends ofsaid arbor, and means for maintaining a constant distance between saidother plug and the supporting means for this end of the arbor.

References Cited in the file of this patent UNITED STATES PATENTSPickett Apr. 17, 1917 Elka Mar. 28, 1944 FOREIGN PATENTS Germany June23, 1927

